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Finding the Fourth Proportional to 681,135.84, 940,304.16 and 426,627.36

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Solution

The fourth proportional to 681,135.84, 940,304.16 and 426,627.36 is: 588,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,135.84 : 940,304.16 = 426,627.36 : x
  2. Step 2: Convert to fraction form
    681,135.84/940,304.16 = 426,627.36/x
  3. Step 3: Cross multiply
    681,135.84x = 940,304.16 × 426,627.36
  4. Step 4: Simplify right side
    681,135.84x = 401,159,481,377.82
  5. Step 5: Solve for x
    x = 401,159,481,377.82/681,135.84
  6. Step 6: Final answer
    x = 588,956.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.